CVE-2026-107834
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, the multipart loop in internal/bodyprocessors/multipart.go executes defer temp.Close() for every uploaded file part, so each temporary-file descriptor remains open until the complete request returns. An unauthenticated attacker can submit a multipart body containing many minimal file parts and exhaust the process file-descriptor table within the request-body size limit, causing os.CreateTemp failures, MULTIPART_STRICT_ERROR responses, blocked legitimate uploads, and process-wide inability to open files or sockets. This issue is fixed in version 3.8.0.
- CVSS 3.1
- 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 25% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-400, CWE-772
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-rp9v-7xv3-r6g3 | Go | github.com/corazawaf/coraza/v3 | >=3.0.0 <3.8.0 | 3.8.0 |
| GO-2026-6697 | Go | github.com/corazawaf/coraza | all versions | no fix published |
| GO-2026-6697 | Go | github.com/corazawaf/coraza/v2 | all versions | no fix published |
| GO-2026-6697 | Go | github.com/corazawaf/coraza/v3 | >=3.0.0 <3.8.0 | 3.8.0 |